I searched online for an hour to no avail and then spent a couple of hours figuring out how to install the ImageMagick extension on a Windows system with Uniform Server ZeroXI. The following may save some time and frustration for others wanting to use this utility with their local PHP site. I'm using it for local WordPress development.

In this case, the installation is on a Windows 7 (64-bit) box.
However, in this example, the 32-bit version is installed for testing.

For the installation steps below, PHP 5.5 has been installed.
Use the provided note (minor change) for other versions of PHP.

Optional Windows Stand-alone installation:

1. The stand-alone version of ImageMagick for Windows is here:http://www.imagemagi...ses.php#windows2. Download/install either:ImageMagick-6.8.9-5-Q8-x64-dll.exe or ImageMagick-6.8.9-5-Q16-x86-dll.exe.3. Be sure to click on the "Add to system path" checkbox.4. Test/use the application from start menu application or the desktop icon.5. Command line examples are here:http://www.imagemagick.org/Usage/